Male Flare to Pipe Tee Adapter Fitting -4AN

The Male Flare to Pipe Tee Adapter Fitting -4AN from Vibrant Performance is a critical connector for custom fuel, coolant, and hydraulic system builds where multiple circuit branches must merge into a single line. This adapter solves a common fabrication challenge: joining a male flare line with a threaded pipe port while maintaining a tee junction for three-way flow distribution. Whether you're building a fuel distribution block, coolant overflow system, or custom brake line configuration, this fitting provides the mechanical interface your precision plumbing demands.

The -4AN designation indicates a nominal 1/4-inch OD tube size with a 37-degree flare seat—the industry standard for high-pressure applications requiring vibration resistance and leak-free connections. The male flare end seats directly into female flare ports, while the pipe tee outlet threads into NPT or NPTF ports, accommodating both metric and imperial system integration. Vibrant Performance's precision engineering ensures the flare cone geometry and thread tolerances meet SAE J518 specifications, critical for systems operating at fuel injection pressures (40–60 psi) or higher-pressure cooling circuits. The compact 3.54-inch length allows installation in tight engine bay layouts where space constraints eliminate bulkier block-style adapters.

This fitting excels in race fuel systems, turbocharged coolant circuits, and custom transmission cooler plumbing where OEM junction blocks don't exist or don't fit your layout. It's equally at home in trailer brake systems, custom fire suppression lines, or any high-reliability application requiring steel durability and repeatable sealing performance. Installation requires a flare wrench on the -4AN side to avoid rounding; thread the pipe connection hand-tight before final tightening to prevent cross-threading. Verify NPT port sizing on your component before purchase—this adapter threads into standard 1/8" or 1/4" NPT ports depending on your tee outlet specification.